Mirror.



No. v758,382. PATENTED APRI 26, 1904.

- L. B. PRAHAR.

MIRROR, APPLIGATIUN FILED DEO. l0, 1903.

N0 MODEL.

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Patented .April 26, 1904.

UNITED STATES; Partitur` OFFICE.

LOUIS B. PRAHAR, OF NEW YORK, N. Y'.

MIRROR.

SPECIFICATION forming part of Letters Patent No. 758,382, dated Aprile6, 1904. Application led December 10, `1903. Serial No. 184,554- (Nomodel.)

To aZZ whom, it nto/,y concern:

Be it 'known that I, LOUIS B. PRAHAR, a citizen of the United States,and a resident of the city of New York, borough of rBrooklyn, in thecounty of Kings and State of New York, have invented a new and usefulImprovement in Mirrors, 0f which the following is a full, clear, andexact description.

The purpose of my invention is to provide a construction of mirror,especially handmir rors, whereby the glass may be securely held in acontractile frame or adivided frame provided with means for placing itunder tension without danger of the reiiector, no matter hovi7V `thinthe glass may be, from being checked or broken during the operation ofsecuring it in 'position or when the mirror is subjected to any edgestrain during transportation or to accident incident to handling suchmirrorsas, for example, should the frame come in violent engagement withany object.

A further purpose of the invention is to so locate and construct theprotective medium for the glassrellector that it will impart rigidityand stability to even an exceedingly frail glass and will materiallyassist in strengthening the frame as a whole.

The invention' consists in the novel construction and combination of theseveral parts, as will be' hereinafter fully set forth, and pointed outin the claims.

Figure 1 is a front elevation of a hand-mirror with parts of the bodybroken away to disclose the details of construction. Fig. 2 is alongitudinal central section through the .body of the mirror and asectional side elevation of the handle therefor. Figs. 3 and 4 areperspective views of the protective mediums for the reflector; and Fig.5 is a sectional view through a flanged protective medium and a reectorseated therein, together with a sectional view of a portion of the frameand a sectional view of the backing.

A represents the handle of a hand-mirror, which handle may loe partiallyor entirely hollow and which is adapted to receive the terminal members10 of a divided contractile frame B, which frame has a channel or gutter11 in its inner face, and it is here stated that Such a frame is notclaimed as new or the han- 'pad 18, of any appropriate material.

dle and that any well-known means may .be

employed for lessening the diameter of the frame proper by exertingtension on the terlminal members 10.

ple spider, or, as is equivalently shown in Fig.

4, the protective plate, therein designated as 12, may be provided withmarginal projections 15 at desired intervals apart.

rI`he protective platesillustrated are of circular formation, beingadapted to the conventional form of a glass reflector having thecustomarybevel 17 at its front marginal portion; but I desire it to beunderstood that the protective plate employed may be adapted to any formof reflector to which the contractile frame or its equivalent isadaptable.

The protective plate employedin every instance is of larger size thanthe size of the reiiector, but not necessarily much larger, thedifference in size being only sufficient to permit the protective plateto extend a fractional portion of an inch beyond the margin of thereiector.

In assembling the parts of the mirror the reflector 16 is backed .by asuitably-shaped Then the protective plate 12 is placed upon the pad,extending beyond the marginal portion of theY reflector 16, but notnecessarily beyond the edge of the pad, and a suitable back 19 is thenadded, which may be or may not be of the same size as the protectiveplate. These assembled parts are placed within the gutter or channel l1of the body of vthe contractile frame B, and said body is then placedunder tension in the customary orv in any desired manner, whereupon, asthe assembled parts mentioned are clamped in the frame B, all thetension will be sustained by the protective` plate at its edge portionand the edge of the glass reflector will be wholly relieved from IOOplate.

tension and all of the parts Within the frame at their edges will befirmly and securely held in thezchanneled portion of the frame.

From the foregoing it is evident that no matter to what extent themirror may be subjected to endwise jar the glass reflector will berelieved from all such shock, which shock will be entirely sustained bythe protective It is further evident that a backing of fragile materialmay be employed and equally protected, as the backing need not be ofgreater size than the reiiector.

In Fig. 5 I have illustrated a protective plate 12b, having a marginalflange 12, and within this flange a glass refiector is located, whereby'the entire margin of the reiiector is protected.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In mirrors, a contractile frame, a reflector, aprotective disk-like plate of rigid material at the back of thereflector and eX- tending beyond the margin of the reflector, whichframe engages the margin of the protective plate and the outer face ofthe reector, said protective plate relieving the reflector from marginalstrain, as described.

2. In mirrors, a fragile reflector, a protective circular metal plate atthe rear of the relector, a backing for the two elements, and acontractile frame having a channel which receives the marginal portionof yall of the elements, the protective plate taking all of the edgetension due to the adjustment of the frame upon the elements inclosedthereby, as described.

In testimony whereof I have signed my name t'o this specification in thepresence of two subscribing witnesses.

Louis B. PRAHAR.

Witnesses:

J. FRED. ACKER, JNo.M. RITTER.

